Suitcase



FIG. 1 is a perspective view taken from the top, front and left side of a suitcase embodying my new design;

FIG. 2 is a rear elevational view thereof, showing the side opposite that shown in FIG. 1;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a suitcase, as shown and described. 